JONESVILLE, South Carolina — Police say a South Carolina man and his wife killed a registered sex offender and planned to kill others on the registry if they had not been caught.

Union County officials have charged Jeremy Moody and his wife, Christine, with the weekend murders of Charles Parker, 59, and his 51-year-old wife, Gretchen, USA Today reported Wednesday. Jeremy Moody, 30, reportedly confessed to the slayings and told investigators they arrested him "just in time," the paper reported.

Taylor told the media in a news conference that Moody knew Charles Parker in passing and went to the mechanic's home on Sunday with plans to kill him. Moody and his wife were seen on surveillance images arriving and popping open the hood of their car so Parker would think it had broken down and they needed his help.

The video reportedly shows the couple talking to Parker and his wife for a few minutes before going inside.

CBS News reported that Gretchen Parker was not a target, but was killed because she was inside the home at the time her husband was attacked.

Taylor told reporters that Moody planned to kill Charles Parker last year, but got scared. He decided again on Sunday to go through with the plan.

It is unclear why Moody targeted sex offenders. Parker was on the registry for a decade-old third-degree criminal sexual conduct conviction.

The bodies were found by deputies after a customer came to Parker's home seeking car repairs and found the front door open. Investigators had to call animal control officers to remove several Chihuahuas before they could examine the crime scene.

Animal control removed a total of 18 dogs from the home, as well as several cats and six chickens.

Moody has "skinhead" tattooed across his neck, and Taylor said he hinted
to authorities that he may have in the past committed other crimes against people he hated, according to CBS News. Investigators were looking into those claims.